CN107933619B - Method for processing section occupation information by urban rail transit area controller - Google Patents
Method for processing section occupation information by urban rail transit area controller Download PDFInfo
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- CN107933619B CN107933619B CN201711182959.1A CN201711182959A CN107933619B CN 107933619 B CN107933619 B CN 107933619B CN 201711182959 A CN201711182959 A CN 201711182959A CN 107933619 B CN107933619 B CN 107933619B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
- B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
Abstract
The embodiment of the invention provides a method for processing section occupation information by an urban rail transit area controller, which comprises the following steps: when the equidirectional signal machine in front of the target train is in a red light state, the ZC judges whether the parking guarantee information of the target train is effective or not; if the parking guarantee information of the target train is effective, judging whether the safe head position of the target train crosses a signal machine protection point; if the safe head position of the target train crosses the signal machine protection point, judging whether the unsafe position of the target train crosses the signal machine protection point; and if the unsafe position of the target train does not cross the signal machine protection point, withdrawing the safe head position of the target train to the signal machine protection point. The embodiment of the invention can effectively prevent the problem that the safety position of the train calculated by the ZC is inconsistent with the actual pressure occupying state when the traffic signal machine in front of the train is in the red light state, and avoid the condition that the CI judges that the pressure occupying of the turnout section is inconsistent, thereby not influencing the running efficiency of trains on other lines.
Description
Technical Field
The embodiment of the invention relates to the technical field of rail transit control, in particular to a method for processing section occupation information by an urban rail transit area controller.
Background
At present, in an urban rail transit system, two acquisition modes are available for a computer interlocking CI system to judge whether a section occupies idle: and the occupied idle state acquired by the track circuit and the occupied idle state of the logic section sent by the zone controller ZC are utilized.
Referring to fig. 1, for example, in a normal operation, the length of the train is 70 meters, the safe train head position is the actual train head position + the ranging error + the maximum traveling distance in the communication delay time, and the safe train tail position is the actual train tail position + the ranging error, if the current ranging error is 2m and the maximum traveling distance in the communication delay time is 30m, the train safety envelope is 104 m. And the ZC sends the track section where the safety position of the train is located to the CI to be used as the track section occupied by the train. Under normal conditions, the train safety envelope calculated by the ZC is larger than the position actually reported by the train. After the CI receives the train safety position reported by the ZC, if a certain track section reported by the ZC is occupied and the CI track circuit is not occupied, the CI still considers that the track section is in an occupied state.
However, in the existing method for judging the occupied idle state of the track section, when a train stops before a red light signal and the safety envelope of the head of the train crosses a protection point of the signal, the inner section of the signal sent by the ZC is occupied and the CI track circuit does not acquire the occupation. According to the above judgment principle, the CI considers the section as an occupied state. This results in the CI placing the track segment in the locked occupied state even if the train does not actually enter the segment, and if the track segment is a switch segment, the switch will not rotate, which affects the efficiency of trains on other lines.
Disclosure of Invention
In view of this, the embodiment of the present invention aims to provide a method for processing section occupation information by an urban rail transit area controller, so as to solve the problem in the prior art that when a traffic signal in front of a train is in a red light state, the occupied pressure of a turnout section is not consistent due to CI judgment caused by the fact that the safe head position of the train crosses the traffic signal, thereby affecting the traveling efficiency of trains on other lines.
The embodiment of the invention provides a method for processing section occupation information by an urban rail transit area controller, which comprises the following steps:
when the same-direction signal machine in front of a target train is in a red light state, judging whether parking guarantee information of the target train is effective or not by a zone controller ZC;
if the parking guarantee information of the target train is effective, judging whether the safe head position of the target train crosses the signal machine protection point;
if the safe head position of the target train crosses the signal machine protection point, judging whether the unsafe position of the target train crosses the signal machine protection point;
and if the unsafe position of the target train does not cross the signal machine protection point, withdrawing the safe head position of the target train to the signal machine protection point.
Optionally, the target train includes: successfully sleeping the train;
a statically tested train;
the train to be downgraded or downgraded is at zero speed due to emergency braking or cutting off traction.
Optionally, before the zone controller ZC determines whether the stop guarantee information of the target train is valid when the blinker in front of the target train is in a red light state, the method further includes:
the ZC sends a parking guarantee application to the target train in real time and receives reply information returned by the target train and used for confirming that the parking guarantee is valid;
correspondingly, the judging whether the parking guarantee information of the target train is valid by the zone controller ZC includes:
and the ZC judges whether the parking guarantee information of the target train is effective or not according to the transmitted parking guarantee application and the received reply information.
Optionally, the parking guarantee application and the reply message of the parking guarantee application both carry a parking guarantee point and a parking guarantee serial number;
correspondingly, the ZC judging whether the parking guarantee information of the target train is valid according to the sent parking guarantee application and the received reply information, and the judging comprises the following steps:
the ZC judges whether the parking guarantee points carried in the transmitted parking guarantee applications are consistent with the parking guarantee points carried in the received reply information, and whether the parking guarantee serial numbers carried in the transmitted parking guarantee applications are consistent with the parking guarantee serial numbers carried in the received reply information;
the ZC judges that the parking guarantee point carried in the transmitted parking guarantee application is consistent with the parking guarantee point carried in the received reply information, the parking guarantee serial number carried in the transmitted parking guarantee application is also consistent with the parking guarantee serial number carried in the received reply information, and the ZC determines that the parking guarantee is effective according to the reply information, and then determines that the parking guarantee information of the target train is effective, otherwise, the parking guarantee information of the target train is invalid.
Optionally, after the zone controller ZC determines whether the parking guarantee information of the target train is valid, the method further includes:
and if the parking guarantee information of the target train is judged to be invalid, the safe position of the target train is not withdrawn.
Optionally, after determining whether the safe head position of the target train passes through the signal machine protection point, the method further includes:
and if the safe head position of the target train is judged and obtained not to cross the signal machine protection point, the safe position of the target train is not withdrawn.
Optionally, after determining whether the unsafe position of the target train crosses the signal guard point, the method further comprises:
and if the unsafe position of the target train crosses the signal machine protection point, the safe position of the target train is not withdrawn.
Optionally, a retraction distance for retracting the safe head position of the target train to the semaphore guarding point is a maximum traveling distance within communication delay time obtained by the ZC when calculating the safe position of the train.
Optionally, before the traffic signal in the same direction in front of the target train is in a red light state and the ZC determines whether the safe head position of the target train passes through the traffic signal protection point, the method further includes:
the ZC calculates to obtain a safe position and an unsafe position of the target train;
wherein the secure location comprises: a safe headstock position and a safe tailstock position.
It can be known from the above technical solutions that the method for processing the section occupation information by the controller in the urban rail transit area provided in the embodiments of the present invention improves the existing train safety head position calculation scheme and parking guarantee function, so that the safety envelope does not cross the traffic signal protection point when the front of the train is in the red light state, thereby ensuring that the track section occupation is not sent to the CI when the train does not really enter the section, and can solve the problem in the prior art that the occupation pressure of the turnout section is determined to be inconsistent by the CI caused by the train safety head position crossing the traffic signal when the front of the train is in the red light state, thereby affecting the train efficiency of other trains on the line, effectively preventing the problem that the train safety position calculated by the ZC is inconsistent with the actual occupation pressure when the front of the train is in the red light state, and avoiding the situation that the occupation pressure of the turnout section is determined to be inconsistent by the CI, thereby not influencing the running efficiency of the trains on other lines.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a train safety position calculated by a conventional method for processing section occupancy information by an urban rail transit area controller;
fig. 2 is a schematic diagram of a method for processing section occupancy information by an urban rail transit area controller according to an embodiment of the present invention after a train safety location is withdrawn.
Fig. 3 is a flowchart illustrating a method for processing section occupancy information by an urban mass transit zone controller according to an embodiment of the present invention;
fig. 4 is a more detailed flowchart executed by the zone controller ZC in a method for processing zone occupancy information by an urban mass transit zone controller according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 3 illustrates a method for processing section occupancy information by an urban rail transit area controller according to an embodiment of the present invention. As shown in fig. 3, the method for processing the section occupancy information by the urban rail transit area controller of the embodiment includes:
s1, when the front equidirectional signal machine of the target train is in a red light state, the zone controller ZC judges whether the parking guarantee information of the target train is effective or not.
In a specific application, the target train may include:
successfully sleeping the train;
a statically tested train;
the train to be downgraded or downgraded is at zero speed due to emergency braking or cutting off traction.
Specifically, before the step S1, the method of this embodiment may further include a step S0 not shown in the figure:
s0, ZC sends a parking guarantee application to the target train in real time and receives reply information returned by the target train for confirming that the parking guarantee is valid;
accordingly, the "zone controller ZC determines whether the parking guarantee information of the target train is valid" in the step S1 may include: and the ZC judges whether the parking guarantee information of the target train is effective or not according to the transmitted parking guarantee application and the received reply information.
It will be appreciated that the present embodiment optimizes the parking assurance logic. In the prior art, when a CI master is on a route, a ZC applies for parking guarantee through a train. In the embodiment, the ZC sends the parking guarantee application to the train in real time, so as to confirm that the train can be parked before the signal machine, and then performs subsequent judgment on safe position withdrawal, and meanwhile, when the CI applies the parking guarantee information of the train to the ZC, the ZC can also reply to the CI. If the ZC determines that the train cannot stop before the red light signal, subsequent safe position retraction cannot be performed.
Further, the parking guarantee application and the reply information of the parking guarantee application both carry parking guarantee points and parking guarantee serial numbers; correspondingly, the ZC determines whether the parking guarantee information of the target train is valid according to the transmitted parking guarantee application and the received reply information, and may specifically include:
the ZC judges whether the parking guarantee points carried in the transmitted parking guarantee applications are consistent with the parking guarantee points carried in the received reply information, and whether the parking guarantee serial numbers carried in the transmitted parking guarantee applications are consistent with the parking guarantee serial numbers carried in the received reply information;
the ZC judges that the parking guarantee point carried in the transmitted parking guarantee application is consistent with the parking guarantee point carried in the received reply information, the parking guarantee serial number carried in the transmitted parking guarantee application is also consistent with the parking guarantee serial number carried in the received reply information, and the ZC determines that the parking guarantee is effective according to the reply information, and then determines that the parking guarantee information of the target train is effective, otherwise, the parking guarantee information of the target train is invalid.
It is appreciated that, in order to confirm the validity of the parking guarantee information, the ZC needs to send a parking guarantee application to the train along with a parking guarantee serial number that requires the train to reply to the application information along with the serial number information. If the parking guarantee serial number, the parking guarantee point and the information sent by the ZC are consistent and the parking guarantee is effective, the fact that the train can park before the red light signal machine is indicated. Because a plurality of information can be transmitted between the train and the ZC, when the train replies information to the ZC, the parking guarantee serial number is used for marking which inquiry information the reply information is to reply to, so as to avoid the mismatching of the reply information of the train and the inquiry information of the ZC during communication delay.
And S2, if the parking guarantee information of the target train is valid, judging whether the safe head position of the target train crosses the signal machine protection point.
It can be understood that, before the traffic signal in the same direction in front of the target train is in the red light state and the ZC determines whether the safe head position of the target train passes through the traffic signal protection point, the method further includes:
the ZC calculates to obtain a safe position and an unsafe position of the target train;
wherein the secure location comprises: a safe headstock position and a safe tailstock position.
And S3, if the safe head position of the target train crosses the signal machine protection point, judging whether the unsafe position of the target train crosses the signal machine protection point.
And S4, if the unsafe position of the target train does not cross the signal machine protection point, withdrawing the safe head position of the target train to the signal machine protection point.
Specifically, the retraction distance for retracting the safe head position of the target train to the semaphore guarding point may theoretically be the maximum travel distance of the ZC within the communication delay time obtained when the safe position of the train is calculated. According to the example given in the background, the train safety position is retracted to a distance that the traffic signal can be retracted in the order of 30 meters. As long as ZC has guaranteed that the unsafe position of the train calculated is before the semaphore, the train safe position just can withdraw to semaphore department, and this has apparent effect to the driving efficiency that improves another direction on the switch.
It is understood that, in the present embodiment, if the signal in front of the train is a red light and the train does not actually enter the signal inside, even if the train safety position has passed the signal guard point, the ZC may withdraw the train safety position to the signal guard point (refer to fig. 2) so that the ZC does not transmit the occupancy information of the signal inside zone to the CI. Therefore, the problem that the safe position of the train calculated by the ZC is inconsistent with the actual pressure occupying state can be effectively prevented, and the condition that the pressure occupying of the turnout section is inconsistent by the CI is avoided, so that the running efficiency of the trains on other lines is not influenced.
The method for processing the section occupation information by the controller of the urban rail transit area, provided by the embodiment, has the advantages that the existing calculation scheme of the safe train head position and the parking guarantee function of the train are improved, so that the safe envelope cannot cross the signal machine protection point when the front of the train is in the red light state, and the track section occupation is not sent to the CI when the train does not really enter the section, the problem that the traffic efficiency of trains on other lines is influenced because the CI that the safe train head position crosses the signal machine when the front of the train is in the red light state in the prior art judges that the occupied pressure of the turnout section is inconsistent can be solved, the problem that the safe train position calculated by the ZC is inconsistent with the actual occupied pressure when the front of the train is in the red light state can be effectively prevented, and the condition that the CI judges that the occupied pressure of the turnout section is inconsistent is avoided, thereby not influencing the running efficiency of the trains on other lines.
Further, on the basis of the above method embodiment, after the zone controller ZC of step S1 determines whether the parking guarantee information of the target train is valid, the method of this embodiment may further include:
and if the parking guarantee information of the target train is judged to be invalid, the safe position of the target train is not withdrawn.
Further, on the basis of the above method embodiment, after the step S2 of determining whether the safe head position of the target train crosses the signal guard point, as shown in fig. 4, the method of this embodiment may further include:
and if the safe head position of the target train is judged and obtained not to cross the signal machine protection point, the safe position of the target train is not withdrawn.
Further, on the basis of the above method embodiment, after the step S3 of determining whether the unsafe position of the target train crosses the signal guard point, as shown in fig. 4, the method of this embodiment may further include:
and if the unsafe position of the target train crosses the signal machine protection point, the safe position of the target train is not withdrawn.
The method for processing the zone occupation information by the urban rail transit zone controller can effectively prevent the problem that the safe position of the train calculated by the ZC is inconsistent with the actual occupation state when the traffic signal in front of the train is in the red light state, and avoid the condition that the occupation state of the turnout zone is inconsistent by the CI, so that the running efficiency of the train on other lines is not influenced.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for processing section occupation information by an urban rail transit area controller is characterized by comprising the following steps:
when the same-direction signal machine in front of a target train is in a red light state, judging whether parking guarantee information of the target train is effective or not by a zone controller ZC;
if the parking guarantee information of the target train is effective, judging whether the safe head position of the target train crosses a signal machine protection point;
if the safe head position of the target train crosses the signal machine protection point, judging whether the unsafe position of the target train crosses the signal machine protection point;
and if the unsafe position of the target train does not cross the signal machine protection point, withdrawing the safe head position of the target train to the signal machine protection point.
2. The method of claim 1, wherein the target train comprises: successfully sleeping the train;
a statically tested train;
a train to be downgraded or downgraded at zero speed due to emergency braking or cut-off traction.
3. The method according to claim 1, wherein before the zone controller ZC determines whether the parking guarantee information of the target train is valid when the red light state is given to the blinker ahead of the target train, the method further comprises:
the ZC sends a parking guarantee application to the target train in real time and receives reply information returned by the target train and used for confirming that the parking guarantee is valid;
correspondingly, the judging whether the parking guarantee information of the target train is valid by the zone controller ZC includes:
and the ZC judges whether the parking guarantee information of the target train is effective or not according to the transmitted parking guarantee application and the received reply information.
4. The method of claim 3, wherein the parking assurance application and the reply message both carry a parking assurance point and a parking assurance serial number;
correspondingly, the ZC judging whether the parking guarantee information of the target train is valid according to the sent parking guarantee application and the received reply information, and the judging comprises the following steps:
the ZC judges whether the parking guarantee points carried in the transmitted parking guarantee applications are consistent with the parking guarantee points carried in the received reply information, and whether the parking guarantee serial numbers carried in the transmitted parking guarantee applications are consistent with the parking guarantee serial numbers carried in the received reply information;
the ZC judges that the parking guarantee point carried in the transmitted parking guarantee application is consistent with the parking guarantee point carried in the received reply information, the parking guarantee serial number carried in the transmitted parking guarantee application is also consistent with the parking guarantee serial number carried in the received reply information, and the ZC determines that the parking guarantee is effective according to the reply information, and then determines that the parking guarantee information of the target train is effective, otherwise, the parking guarantee information of the target train is invalid.
5. The method according to claim 1, characterized in that after the zone controller ZC has determined whether the parking guarantee information of the target train is valid, the method further comprises:
and if the parking guarantee information of the target train is judged to be invalid, the safe position of the target train is not withdrawn.
6. The method of claim 1, wherein after determining whether the safe nose location of the target train crosses the signal guard point, the method further comprises:
and if the safe head position of the target train is judged and obtained not to cross the signal machine protection point, the safe position of the target train is not withdrawn.
7. The method of claim 1, wherein after determining whether the unsafe location of the target train crosses the signal protection point, the method further comprises:
and if the unsafe position of the target train crosses the signal machine protection point, the safe position of the target train is not withdrawn.
8. The method of claim 1, wherein the retraction distance to retract the safe head position of the target train to the semaphore guard point is a maximum travel distance within a communication delay time obtained by the ZC in calculating the safe position of the train.
9. The method of any one of claims 1-8, wherein before the red light status of the wayside signal ahead of the target train and the ZC determining whether the safe nose location of the target train crosses the signal guard point, the method further comprises:
the ZC calculates to obtain a safe position and an unsafe position of the target train;
wherein the secure location comprises: a safe headstock position and a safe tailstock position.
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| CN111776012B (en) * | 2020-06-29 | 2022-07-19 | 交控科技股份有限公司 | Train entrance detection method based on TMC |
| CN113997975B (en) * | 2020-07-28 | 2022-11-22 | 株洲中车时代电气股份有限公司 | Automatic shunting data processing method and device and related components |
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| WO1992000862A1 (en) * | 1990-07-05 | 1992-01-23 | Utdc Inc. | Linear motor in-track transit system |
| WO2009138059A1 (en) * | 2008-05-13 | 2009-11-19 | Thales Rail Signalling Solutions Gmbh | Method for recognizing and assigning stop cases, and stop case recognition device for a train control system |
| CN102951186A (en) * | 2012-10-30 | 2013-03-06 | 北京交控科技有限公司 | Method for computing signaler trans-voltage command |
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